<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>测试</title>
</head>
<body>
<form action="">
    <div>
        <input type="text"placeholder="bmatch">
    </div>
     <div>
         <select name="" id="">
             <option value="">大一</option>
             <option value="">大二
             </option>
         </select>
     </div>
    <button type="submit">提交</button>
</form>
</body>
</html>